finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 6620

Hot Dip Galvanising compared to Zinc Electroplating


(2000)

We are in the business of fabricating telephone line plant accessories for fixed wire telecom lines that are used on the poles outdoors.

1) Due to difficulties in galvanizing we intend to switch to zinc electroplating.

How effective is the ZE as compared to hot dip galvanizing in terms of protection lifetimes, protection against, etc.

2) Where can I get good technical data on Zinc Electroplating.

Ken Lamba
telecom) - Kenya

(2000)

There is an old truism in the finishing industry: "Zinc is zinc." It means that the protective value of a given thickness of zinc coating is virtually the same whether the zinc is deposited by galvanizing, mechanical plating, acid zinc plating, cyanide zinc plating, or alkaline non-cyanide zinc plating.

It's primarily a matter of thickness. However, your problem will be that electroplated zinc is usually not as thick as galvanized zinc. It is not so much because it is impossible to electroplate a thicker coating; rather, it is the case that in the thin coating ranges electroplating is usually more economical than hot dipping, whereas in the thick coating ranges it is much less economical.

Have you considered mechanical galvanizing?

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


(2000)

Hot dip galvanising will offer vastly superior performance to zinc electroplating. Couldn't be sure of the weather conditions in Kenya but in a Scottish climate I would expect galvanising to last up to 10 times as long as an 8-10 micron electroplated coating.

Dougie Lightfoot
- Fife, Scotland



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.